I just created some sample character animations with SpriteBuilder. If there is interest, I could possibly turn this into a tutorial.
Impressive. Would love to see a tutorial on this. What would you gauge the difficulty to be?
I would also be interested in a tutorial. Looks great!
It's not at all technically hard to do. However, for doing the graphics and animations you need to have a bit of a feel for it I think. When we've got the final SpriteBuilder release out, I'll make some sort of screencast or tutorial out of this.